Porsche Forum Australia

VarioCam details

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4 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHVarioCam details

Leading reported evidence

Replace sparks plugs

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster
Anyway car is at the mechanic atm, water pump getting changed, sparks plugs change while they are under there.
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VarioCam details

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Leading evidence: 'Replace sparks plugs' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'variocam lifters playing a part in my bad idle' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace sparks plugs' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 4 captured posts examined · 1 partial discussions

Compare 3 other evidence results

Use thing

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster
I am thinking it's a low rpm run one lobe, higher rpm other lobe gets used thing.
Original post Read captured discussion
VarioCam details

variocam lifters playing a part in my bad idle

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

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Discussions that suspect a cause: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suspected cause · Original poster
so maybe it was the variocam lifters playing a part in my bad idle.
Original post Read captured discussion
VarioCam details

Replace while they are

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster
Anyway car is at the mechanic atm, water pump getting changed, sparks plugs change while they are under there.
Original post Read captured discussion
VarioCam details

Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace sparks plugs

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster
Anyway car is at the mechanic atm, water pump getting changed, sparks plugs change while they are under there.
Original post Read captured discussion
VarioCam details

Replace while they are

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster
Anyway car is at the mechanic atm, water pump getting changed, sparks plugs change while they are under there.
Original post Read captured discussion
VarioCam details

Use thing

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster
I am thinking it's a low rpm run one lobe, higher rpm other lobe gets used thing.
Original post Read captured discussion
VarioCam details

Reported and suspected causes (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

variocam lifters playing a part in my bad idle

No successful repair reported for this finding.

0
Identified cause: 1
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that suspect a cause: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suspected cause · Original poster
so maybe it was the variocam lifters playing a part in my bad idle.
Original post Read captured discussion
VarioCam details

Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Porsche Forum Australia: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261027T022239Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

As part of my search for why my car idles badly and misfires occastionally when idling, the hydraulic lifters have been mentioned as a possible problem. Looking at the VarioCAM details: it's been suggested to me that that extra little lifter in the middle of the big lifter might be sticking up, hence causing the car to not idle properly until it comes down again. Rennlist guys have also mentioned this as a possible error point. Now, does anyone know what RPM this extra lifter comes into play? I am thinking it's a low rpm run one lobe, higher rpm other lobe gets used thing. Am I right of wrong? Cheers all.

POST 2Original post

3K RPM to 3.2K RPM. Thu I can not remember where I have seen this. I also remember the durametric tool can report the state of virocam. I need to dust it off and try it. I have rough Idle as well and will try to diagnose the cause when I get some fee time.

POST 3 / ORIGINAL POSTEROriginal post

well I've gone to autobarn, bought some sticky lifters cleaning stuff and chucked it into the engine, lets see if that helps. Lots of moving hydraulic parts in there.... maybe some sludge just gumming up the works? Anyway car is at the mechanic atm, water pump getting changed, sparks plugs change while they are under there. cross fingers my car will idle after this.

POST 4 / ORIGINAL POSTEROriginal post

so far so good, new plugs + coils + sticky lifter cleaner = very smooth idle Also cured the occasional problem I had, which was after I've revved the engine hard.. the idle was lumpy. so maybe it was the variocam lifters playing a part in my bad idle. cross fingers it's all going to be fine for a while.

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